122311151251212 has 96 divisors (see below), whose sum is σ = 355996638756864. Its totient is φ = 31752846216000.

The previous prime is 122311151251183. The next prime is 122311151251217. The reversal of 122311151251212 is 212152151113221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 122311151251212.

It is not an unprimeable number, because it can be changed into a prime (122311151251217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32121258 + ... + 35726705.

It is an arithmetic number, because the mean of its divisors is an integer number (3708298320384).

Almost surely, 2^{122311151251212} is an apocalyptic number.

122311151251212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122311151251212 is an abundant number, since it is smaller than the sum of its proper divisors (233685487505652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122311151251212 is a wasteful number, since it uses less digits than its factorization.

122311151251212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67849939 (or 67849937 counting only the distinct ones).

The product of its digits is 2400, while the sum is 30.

The spelling of 122311151251212 in words is "one hundred twenty-two trillion, three hundred eleven billion, one hundred fifty-one million, two hundred fifty-one thousand, two hundred twelve".